(1) A 10% jump in average refunds usually traces back to changes in withholding and refundable credits, not a sudden drop in everyone's tax burden. When employers update withholding tables, and workers don't adjust their W-4 after life changes (second job, spouse income, bonus shifts), over-withholding can rise and show up as bigger refunds. Another driver is refundable credits: if eligibility or claim rates move (for example, more filers qualifying for credits, or claiming missed credits), the average refund can increase even if gross income is flat. (2) I generally see three "highest impact" uses: first, shore up high-interest debt (credit cards, payday-style products) because the guaranteed return from avoided interest is hard to beat. Second, build or replenish a cash buffer in a separate high-yield savings account so the next surprise expense doesn't go back on a card. Third, if those are covered, use the refund for targeted long-term wins: catch up on retirement contributions (IRA/401(k) if available), or prepay known near-term costs (insurance deductibles, essential car/home maintenance) that prevent bigger bills later. In our work, we've seen that earmarking the refund into named buckets reduces "leakage" versus leaving it in checking. (3) The biggest mistakes I see are treating the refund as "free money" and spending it before stabilizing basics, or using it for a large discretionary purchase while carrying revolving debt. Another common miss is ignoring the signal: a very large refund can mean you gave the government an interest-free loan all year; adjusting withholding can improve monthly cash flow and reduce reliance on credit. Finally, some people rush the filing process and miss credits or make errors that delay refunds--taking a bit more time (or using a qualified preparer when situations are complex) often pays for itself in accuracy and speed.